src/lib-roff/matherr.c

   1 /*@
   2  * Copyright (c) 2014 - 2015 Steffen (Daode) Nurpmeso <sdaoden@users.sf.net>.
   3  *
   4  * Copyright (C) 1989 - 1992, 2001 Free Software Foundation, Inc.
   5  *      Written by James Clark (jjc@jclark.com)
   6  *
   7  * This is free software; you can redistribute it and/or modify it under
   8  * the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2, or (at your option) any later
  10  * version.
  11  *
  12  * This is distributed in the hope that it will be useful, but WITHOUT ANY
  13  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15  * for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with groff; see the file COPYING.  If not, write to the Free Software
  19  * Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 #include "config.h"
  23
  24 #include <errno.h>
  25 #include <math.h>
  26
  27 #ifdef HAVE_STRUCT_EXCEPTION
  28 #ifdef TLOSS
  29
  30 int matherr(exc)
  31 struct exception *exc;
  32 {
  33   switch (exc->type) {
  34   case SING:
  35   case DOMAIN:
  36     errno = EDOM;
  37     break;
  38   case OVERFLOW:
  39   case UNDERFLOW:
  40   case TLOSS:
  41   case PLOSS:
  42     errno = ERANGE;
  43     break;
  44   }
  45   return 1;
  46 }
  47
  48 #endif /* TLOSS */
  49 #endif /* HAVE_STRUCT_EXCEPTION */
  50
  51 // s-it2-mode